5 papers
Detection of ultra-low concentration NO2 in complex environment using epitaxial graphene sensors
Christos Melios, Vishal Panchal, Kieran Edmonds +3
We demonstrate proof-of-concept graphene sensors for environmental monitoring of ultra-low concentration NO2 in complex environments. Robust detection in a wide range of NO2 concen…
Visualisation of edge effects in side-gated graphene nanodevices
Vishal Panchal, Arseniy Lartsev, Alessandra Manzin +3
Using local scanning electrical techniques we study edge effects in side-gated Hall nanodevices made of epitaxial graphene. We demonstrate that lithographically defined edges of th…
Atmospheric doping effects in epitaxial graphene: correlation of local and global electrical measurements
Vishal Panchal, Cristina E. Giusca, Arseniy Lartsev +5
We directly correlate the local (20-nm scale) and global electronic properties of a device containing mono-, bi- and tri-layer epitaxial graphene (EG) domains on 6H-SiC(0001) by si…
Observation of Coulomb blockade in nanostructured epitaxial bilayer graphene on SiC
Cassandra Chua, Arseniy Lartsev, Jinggao Sui +9
We study electron transport in nanostructures patterned in bilayer graphene patches grown epitaxially on SiC as a function of doping, magnetic field, and temperature. Away from cha…
The effect of bilayer domains on electronic transport properties of epitaxial graphene on SiC
Tom Yager, Arseniy Lartsev, Rositza Yakimova +2
Magnetotransport measurements on Hall bar devices fabricated on purely monolayer epitaxial graphene on Silicon Carbide (SiC/G) show a very tight spread in carrier concentration and…